undefect. CWE-407 — 63 sites patched across 27 ecosystems

Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.

test/langtools/tools/javac/processing/environment/TestPreviewEnabled.java

@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2006, 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8222378
+ * @summary Test that ProcessingEnvironment.isPreviewEnabled works properly
+ * @library /tools/javac/lib
+ * @modules java.compiler
+ * @build   JavacTestingAbstractProcessor
+ * @compile TestPreviewEnabled.java
+ * @compile -processor TestPreviewEnabled -proc:only -source ${jdk.version} -AExpectedPreview=false                  TestSourceVersion.java
+ * @compile -processor TestPreviewEnabled -proc:only -source ${jdk.version} -AExpectedPreview=true  --enable-preview TestSourceVersion.java
+ */
+
+import java.util.Locale;
+import java.util.Map;
+import java.util.Set;
+import javax.lang.model.SourceVersion;
+import javax.lang.model.element.TypeElement;
+import javax.annotation.processing.*;
+import javax.lang.model.util.*;
+
+/**
+ * This processor checks that ProcessingEnvironment.isPreviewEnabled
+ * is consistent with the compiler options.
+ */
+@SupportedOptions("ExpectedPreview")
+public class TestPreviewEnabled extends JavacTestingAbstractProcessor {
+    public boolean process(Set<? extends TypeElement> annotations,
+                           RoundEnvironment roundEnvironment) {
+        if (!roundEnvironment.processingOver()) {
+            boolean expectedPreview =
+                Boolean.valueOf(processingEnv.getOptions().get("ExpectedPreview"));
+            boolean actualPreview =  processingEnv.isPreviewEnabled();
+            System.out.println("Expected PreviewEnabled: " + expectedPreview +
+                               "\n  actual PreviewEnabled: "  + actualPreview);
+            if (expectedPreview != actualPreview)
+                throw new RuntimeException();
+
+            if (expectedPreview) {
+                // Create a ProcessingEnvironment that uses the
+                // default implemention of isPreviewEnabled.
+                ProcessingEnvironment testEnv = new ProcessingEnvironment() {
+                        @Override public Elements getElementUtils() {return null;}
+                        @Override public Filer getFiler() {return null;}
+                        @Override public Locale getLocale() {return null;}
+                        @Override public Messager getMessager() {return null;}
+                        @Override public Map<String,String> getOptions() {return null;}
+                        @Override public SourceVersion getSourceVersion() {return null;}
+                        @Override public Types getTypeUtils() {return null;}
+                    };
+                if (testEnv.isPreviewEnabled()) {
+                    throw new RuntimeException("Bad true return value from default " +
+                                               "ProcessingEnvironment.isPreviewEnabled.");
+                }
+            }
+        }
+        return true;
+    }
+}